时间:2018-12-30 作者:英语课 分类:托福听力短文


英语课
(MA) Now we're entering Kangaroo Country. In all, there are more than fifty different species of kangaroo, and the advantage of zoos like ours is that you see them in their natural habitat. The ones we have all live in the grasslands 1.

On my right, you can see one of the biggest types: the red kangaroo. It travels about 20 miles per hour. It looks like hard work, but hopping 2 actually lets the kangaroo conserve 3 more energy than another animal could when running on four legs. In fact, up to a certain point, the faster a kangaroo goes the more energy it conserves 4. Rather than taking more hops 5 to increase speed, the kangaroo makes the length of each jump longer.

Let's stop here for a minute. Take a look over on your right at this group of kangaroos resting. Can you see that their ears are moving? Hearing may well be the kangaroo's most important sense. Their two large ears can move independently, so sometimes one ear is pointing forward and the other toward the rear. Kangaroos' eyesight is also excellent. They have a wide field of vision and, like most grazing animals, they are especially good at detecting movement.

Before we move on, I'd like to point out one more thing: If you look closely, you can see a joey --- that's a baby kangaroo --- peering out of its mother's pouch 6. Before long that joey will be out of the pouch for good. The mother will push it out by the time it's eight months old.


n.草原,牧场( grassland的名词复数 )
  • Songs were heard ringing loud and clear over the grasslands. 草原上扬起清亮激越的歌声。 来自《现代汉英综合大词典》
  • Grasslands have been broken and planted to wheat. 草原已经开垦出来,种上了小麦。 来自《简明英汉词典》
vt.保存,保护,节约,节省,守恒,不灭
  • He writes on both sides of the sheet to conserve paper.他在纸张的两面都写字以节省用纸。
  • Conserve your energy,you'll need it!保存你的精力,你会用得着的!
n.(含有大块或整块水果的)果酱,蜜饯( conserve的名词复数 )v.保护,保藏,保存( conserve的第三人称单数 )
  • To show that the equation conserves the total volume is not difficult. 要证明该方程保持了总体积不变这点是不困难的。 来自辞典例句
  • The antimuon decay also conserves the total light and heavy lepton numbers. 在反μ子衰变中,总轻轻子数和总重轻子数也是守恒的。 来自辞典例句
跳上[下]( hop的第三人称单数 ); 单足蹦跳; 齐足(或双足)跳行; 摘葎草花
  • The sparrow crossed the lawn in a series of hops. 那麻雀一蹦一跳地穿过草坪。
  • It is brewed from malt and hops. 它用麦精和蛇麻草酿成。
n.小袋,小包,囊状袋;vt.装...入袋中,用袋运输;vi.用袋送信件
  • He was going to make a tobacco pouch out of them. 他要用它们缝制一个烟草袋。
  • The old man is always carrying a tobacco pouch with him.这老汉总是随身带着烟袋。
学英语单词
a casualty list
abodances
aerotherapeuties
aikin
air extracting seal
almonry
americap
ancende
antileukaemics
antipodal condition
aquilege
autocontinous helical-coveyor centrifuge
avaunting
bjelica
black sally
Bremer Ra.
channel status
collus germinalis
computer aided programming
coronary vascular resistance
cystic-glandular hyperplasia of the endometrium
date of the filing of the suit
deformation of bearing
double-ratio estimator
drive-motor
duffin
eard
electrostatographic imaging process
ephemeropterans
evangelise
exceptionability
femalest
firtrees
frontal drag
gasificating desulfurization
gingival-lingual wire
grand aria
hand free interphone
Hasina Wazed, Sheikh
hatch spot
heatpump
Hnawgon
hoggart
house-renter
imaginary plane
juvabione
male sheep
mechanism of dimples
mission furniture
Morro, Pta.dos
nested language
operating directive
orthodinitrocresol
outboarding
ovinest
ozone-depleters
Pacific hemlock
parameter string
patrol stage
Peltandripites
photodestructive effect
platinum group
pre-halloween
prison house
puff-bird
pulsed klystron
Rachmanism
rootage
rush repair job
schmelze
scratchlike
self-medicators
sharebones
SHCO
shmendricks
shovel-type excavator
sideproduct
silverstat relay
single engine locomotive
single-factor authentication
sleeps with someone
souring
speed rise on load rejection
syndrome of excessive heat of small intestine
tantalic bromide
tegumental
text management system
three-fold division
total meaning
truno
veepstakes
verbal injury
Very High Frequency Radio Telephone
vibator
war injury of intestine
woodmouse
xenotime- (y)
yaw actuator
ytterbic sulfate
zero-duty bindings